149842117 has 4 divisors (see below), whose sum is σ = 150670156. Its totient is φ = 149014080.

The previous prime is 149842111. The next prime is 149842129. The reversal of 149842117 is 711248941.

149842117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1635841 + 148206276 = 1279^2 + 12174^2 .

It is a cyclic number.

It is not a de Polignac number, because 149842117 - 2³ = 149842109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149842111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413748 + ... + 414109.

It is an arithmetic number, because the mean of its divisors is an integer number (37667539).

Almost surely, 2^149842117 is an apocalyptic number.

It is an amenable number.

149842117 is a deficient number, since it is larger than the sum of its proper divisors (828039).

149842117 is an equidigital number, since it uses as much as digits as its factorization.

149842117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828038.

The product of its digits is 16128, while the sum is 37.

The square root of 149842117 is about 12241.0014704680. The cubic root of 149842117 is about 531.1428016784.

The spelling of 149842117 in words is "one hundred forty-nine million, eight hundred forty-two thousand, one hundred seventeen".